Home / 212,577.38-293,357.08-115,781.61

Finding the Fourth Proportional to 212,577.38, 293,357.08 and 115,781.61

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Solution

The fourth proportional to 212,577.38, 293,357.08 and 115,781.61 is: 159,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,577.38 : 293,357.08 = 115,781.61 : x
  2. Step 2: Convert to fraction form
    212,577.38/293,357.08 = 115,781.61/x
  3. Step 3: Cross multiply
    212,577.38x = 293,357.08 × 115,781.61
  4. Step 4: Simplify right side
    212,577.38x = 33,965,354,882.57
  5. Step 5: Solve for x
    x = 33,965,354,882.57/212,577.38
  6. Step 6: Final answer
    x = 159,778.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.